2,4-d is synthetic herbicide derived from_______________?
2,4-d is synthetic herbicide derived from_______________?
A. Amino acid
B. Valine
C. Auxins
D. Cytokmins
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The given off water vapours from the surface of leaves is called________________?
The given off water vapours from the surface of leaves is called________________?A. Transpiration
B. Respiration
C. Exudation
D. EvaporationPrimary air polluted is________________?
Primary air polluted is________________?A. SO2
B. SO3
C. SO4
D. NonePlants grown in dry region are_________________?
Plants grown in dry region are_________________?A. Xerophytes
B. Thermophyts
C. Mesophytes
D. HalophytesPlants uptake their nutrients from____________________?
Plants uptake their nutrients from____________________?A. Air
B. Water
C. So
D. All the aboveAllelopathy is an important component in the development of future integrated strategies for____________?
Allelopathy is an important component in the development of future integrated strategies for____________?A. Soil management
B. Weed management
C. Water management
D. non of theseWho gave the formula for mean germination time?
Who gave the formula for mean germination time?A. Nicolls &Heydecker (1968)
B. Kotowski (1962)
C. Baskin (1972)
D. Maguire (1962)